Chimney-cowl.



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sr'ncrrrcnnon f1 ming pm if I..v ters Patent No. 648,801, aated'vr'ayir,Applicatie@ nea Jun@ zaiseasermm. 721.456. (mman.) v r t' To' c/ZZZwhom, it may concern:

Be it knownthat I, vMAX CLEMEN'S SCHU- BERT, a citi'zenofv Germany,residing aty I do hereby declare the following to be a ful-l, clear, andexact description of the invention,

such as will enable others Skilled inthe art to which vitappertain's'to. make and use the same.

My invention relates tochimney-cowls and caps or partial closures forthe -upperends of i chimney-fines, stacks, *or Ventilating-pipes.

It comprises a systematic arrangement of deflectorsand hoods designed avd adapted to'cxclude all objectionable doszndrafts or counter-currents,at same time.A permitting and encouraging the unrestricted egress ofsmoke, waste products of combustion, and gases from within.

The invention also performs the functions of `a spark-arrester ancserves at all times to preserve the chimney, stack, or pipe fromdamaging eects of the elements by closing the outlet end thereof againstthe admission of rain and snow. i

The invention will he hereinafter described, and particularly pointedont in the claims following.

In the accompanying drawings, which form Y part of' this specification,and whereon cor' responding letters of reference indicate the same partsin the several views, Figure l represents a side elevation of theinvention applied to the upper outlet end of a stack. Fig. 2 is acentral vertical section of salme, and Fig. 3 is a side View of one ofthe continuous angle-irons employed as a frame upon PATENT OEErcE.

Secured to the frame-irons 'D at points abOY-.Q

stack A isan upwardly-,divergingannular" jacket F; which practicallyforms a'lcoxntir1u4 5 5 ation of the,l stack, though" ofginc'rea'seddi-gameter, and vis finished ati-"1 sjlow Idgle b f aslight overhang af,alsodifver'gig t wardly extending. "f, [f1.1

Within the confines of 'frainea po'i' ,I approximating the upperedg'elof*`` et EQ, are secured radial strapsiI'I I', affording e,- supportfor ahollow defleting-drunifht l h' ocmp'ying` a positioninl;tire'jce'titer of the,l` structure and of double conical shape,bavving'y oppositely-disp'osed apexes G G and al common base H forpurposes that will later appear, l

Surrounding the upper end of drum Fand also 'overhanging jacket E is acentrally-perforated' converging hood J, serving principally asadellector for' outside currents and drafts. The said hood is alsosecured to frame D by rivets or otherwise and is surmounted by a conicalcap L, serving'as a closure for the upper end of the structure.;

This being a description of the invention, its operation and effect areas follows: Smoke and waste products of combustion or gases risingnaturally through stack A first come in cont'fct withthe lowermost endof drum F,

projez 1 slightly into the flaring extremity B of the stack, and arethereby deiiected, findinf; vent between' jacket E and hood J throughthe aperture K, or if under influence of an upward exterior draft saidaperture'is passed` theymust necessarily escape through aper. ture Nabove. On the other hand, it will be observed that no direct gush orrushof air can enter at the aperture M, any upward c'urrent or |suctionbeing checked by the baseof the collar C, a downward current beingthrown off by the` lower outward flare of the jacket E, while ahorizontal or upwardly-inclined current is modified by contact with theouter side of the flaring collar C and the upwardlyflaring end of pipeA, sending a gentle current into the jacket E, which by contact with thelower portion of the drum F is deiiected upward, sufficientlystimulating the draft` to carry the smoke and gas upward to the apertureK, where it escapes to the atmosphere. The wind coming in at theaperture K strikes the upper portion of drum F, by which the ruptedescape of smoke.

current" is broken and deflected upwardly,l and it will be observed thatthe draft will be disturbed only in the quarter froufwhich the Wind isblowing, ,leaving at least three-fourths v of the annular spacebetwecnthe jacket' E and the drum F for the free and uniuter The aperture Nbctween the section J and cap L allows the heat to escape to theatmosphere, while the cap L prevents the Wud'uor rain" from entering atthe top. l

Having thus described myiuveution, what f 1.' Ina chimney I-clam, anddesire to secure by Letters Patr,

lar upwijdly-diyerging jacket surrounding and' securedtofsaidframe, anupwardly-con verging hood also secured to the Aframesurmounting, saidjacket; and a deiiecting-drum suspended "centrally upon the `framelaforesaid,""subs'tanti.llyfas andv for the purposesv sefforthv-. 2l Ina, cliiiuueyfcowl the combination with a"stack,`of a frame securedthereto, ananuu-- y l -cowl the combination withA f, a stack, of a frame.secured thereto, an annuf lar upwardly-diverging jacket surrounding andsecured to said frame, an upwardly-converging hood also secured to theframe surmounting the jacket, a conical cap likewise secured in placeabovel said jacket, and a conical deecting-drum suspended centrallywithin the frame aforesaid,,substantially as and a double conicaldeecting-drum sus-v pended centrallywithin the frame and projectiug intothe stack aforesaid, substantially as and for the'purposes set forth.v

In testimony whereof lI subscribe my signature iupresence of twoWitnesses.

MAX CLEMENS SCHUBERT.

XVitnesses:

J oHNV SCHLARB, W. C. OARMAN.

